<template>
  <div class="permission-container">
    <div class="app-container">
      <PageTools>
        <template v-slot:after>
          <el-button type="primary" @click="addPermission(1, '0')">添加菜单</el-button>
        </template>
      </PageTools>
      <el-table border="" :data="list" row-key="id">
        <el-table-column
          label="名称"
          prop="name"
        />
        <el-table-column
          label="标识"
          align="center"
          prop="code"
        />
        <el-table-column
          label="描述"
          align="center"
          prop="description"
        />
        <el-table-column
          label="操作"
          align="center"
        >
          <template v-slot="{ row }">
            <el-button v-if="row.type === 1" type="text" @click="addPermission(2, row.id)">添加</el-button>
            <el-button type="text" @click="editPermission(row.id)">编辑</el-button>
            <el-button type="text" @click="delPermission(row.id)">删除</el-button>
          </template>
        </el-table-column>
      </el-table>
      <!-- 新增 编辑 查看 弹层 -->
      <el-dialog :visible="showDialog" :title="showText" @close="btnCancel">
        <el-form ref="permFormData" :model="formData" :rules="rules" label-width="120px">
          <el-form-item label="权限名称" prop="name">
            <el-input v-model="formData.name" style="width:90%" />
          </el-form-item>
          <el-form-item label="权限标识" prop="code">
            <el-input v-model="formData.code" style="width:90%" />
          </el-form-item>
          <el-form-item label="权限描述" prop="description">
            <el-input v-model="formData.description" style="width:90%" />
          </el-form-item>
          <el-form-item label="开启">
            <el-switch
              v-model="formData.enVisible"
              style="width:90%"
              inactive-value="0"
              active-value="1"
            />
          </el-form-item>
        </el-form>
        <el-row slot="footer" type="flex" justify="center" align="center">
          <el-col :span="6">
            <el-button @click="btnCancel">取消</el-button>
            <el-button type="primary" @click="btnOk">确定</el-button>
          </el-col>
        </el-row>
      </el-dialog>
    </div>
  </div>
</template>

<script>
import {
  getPermissionList,
  addPermission,
  updatePermission,
  delPermission,
  getPermissionDetail
} from '@/api/permisson'
import { tranListToTreeDate } from '@/utils'
export default {
  name: 'Permission',
  data() {
    return {
      list: [],
      showDialog: false, // 控制新增 编辑 查看权限弹层
      formData: {
        name: '', // 名称
        code: '', // 标识
        description: '', // 描述
        type: '', // 类型 该类型 不需要显示 因为点击添加的时候已经知道类型了
        pid: '', // 因为做的是树 需要知道添加到哪个节点下了
        enVisible: '0' // 开启
      },
      rules: {
        name: [{ required: true, message: '权限名称不能为空', trigger: 'blur' }],
        code: [{ required: true, message: '权限标识不能为空', trigger: 'blur' }]
      }
    }
  },
  computed: {
    showText() {
      return this.formData.id ? '编辑' : '新增'
    }
  },
  created() {
    this.getPermissionList()
  },
  methods: {
    async getPermissionList() {
      this.list = tranListToTreeDate(await getPermissionList(), '0')
    },
    delPermission(id) {
      this.$confirm('确定删除？').then(() => {
        return delPermission(id)
      }).then(() => {
        this.$message.success('删除成功')
        // 重新拉取数据
        this.getPermissionList()
      })
    },
    btnCancel() {
      this.formData = {
        name: '', // 名称
        code: '', // 标识
        description: '', // 描述
        type: '', // 类型 该类型 不需要显示 因为点击添加的时候已经知道类型了
        pid: '', // 因为做的是树 需要知道添加到哪个节点下了
        enVisible: '0' // 开启
      }
      this.$refs.permFormData.resetFields()
      this.showDialog = false
    },
    btnOk() {
      this.$refs.permFormData.validate().then(() => {
        if (this.formData.id) {
          // id 存在说明是 添加访问权限
          return updatePermission(this.formData)
        }
        // 无id为新增
        return addPermission(this.formData)
      }).then(() => {
        this.$message.success('新增权限成功')
        // 重新拉取数据
        this.getPermissionList()
        this.showDialog = false
      })
    },
    addPermission(type, pid) {
      // 该回调函数被两个事件绑定
      // 添加访问权限 - type = 1
      // 添加按钮权限 - type = 2
      this.showDialog = true
      this.formData.type = type
      this.formData.pid = pid
    },
    async editPermission(id) {
      this.formData = await getPermissionDetail(id)
      this.showDialog = true
    }
  }
}
</script>

<style>

</style>
